Improved window-stop



vUNITED STATES PATENT Erice.

JOHN sLrNGEELAND, OE GEEEN POINT, AssiGNOE To EiMsELE AND JOHN E.KELLY,.OE NEw YORK, N. Y.

IMPROVED WINDOW-STOP.

Specification forming part of Letters Patent No. 36,823, dated October28, 1862.

To all whom it may concern:

Be it known that I, JOHN SLINGEELAND, of Green Point, in the county ofKings and State of New York, have invented a certain new and usefulImprovement in Window- Stops; and I do hereby declare that the followingis a full and exact description thereof, reference being had to theaccompanying'drawing, which is an elevation of a window and frame withmy improved stop attached;

The nature of my invention consists in the combination of a movablein'cline and stop with an elastic roller, so arranged that therollershall bind between the incline and the side ofthe casing, toprevent the sash from falling when raised, and that the same may bereleased at will by adjusting the position of the inclined surface, and,also, in combination therewith, the employment of teeth or equivalentroughened surface upon the said incline, for the purpose of causing thesaid elastic roller to roll up said incline and bind the window, whenthe latter commences to fall. Without these said teeth the roller wouldbe liable, to slip back upon the incline and allow the window to fall,particularly if the ineline were at a sufficient angle to Operate withrapidity.

To enable others skilled in the art to make' and use my invention, Iwill proceed to describe its construction and arrangement by the aid ofthe drawing.

A represents the sash, and B the casing, of a window, G C'.

c is a metallic frame-work of a proper form Y to retain the workingparts of the invention, screwed fast to the sash A. It is composed oftwo plates, Gand C', one behind the other, supported at a littledistance apart by studs or posts c c c c. Within this frame-work apiece, D, is so hung upon the screw d as to be capable of assuming theposition shown in red outline. A swing-catch, d', is hinged to D at itsupper end, and fitted to either stand up, as shown in red lines, andallow D to be turned on its pin d, or turn down and enter a slot ornotch in C, as shown in full black lines, to hold D' in its forwardposition. The face of D is toothed or notched, as represented, and whenin its forward position it stands inclined to the edge of the casing B,as shown. Y

In the space formed between the two plates C and C', the piece D, andthe casing B a roller, E, is placed of such size that when it rests uponthe ledge or shelf formed by the y post c it shall fill the spacebetween D and B,

as represented. This roller is formed with a and B, and to maintain aclose contact therewith. If, when the parts are in this position, withthe sash A at any height desired, the effort to hold up the sash by thehand be relaXed, the sash sinks a very little distance and then stops,because the roller 4E is caused to roll between D and B, and thus toassume a position where it is more tightly compressed, owing to theinclination of D, and thus the sash is pressed against the opposite sideof the casing. By the friction thus engendered the sash is supported.The greater theweight or strain upon the sash the more powerful is theresistance to its motion.

When it is desired to lower Lthe sash, the catch d' is lifted from itsnotch in G, and D is moved into the position shown in red outline, whenall resistance to the motion of the sash is removed, and it can beraised or lowered at pleasure. When it is desired again to confine it inany position, the piece D is again pushed forward to the position shownin black lines, 'and fastened there by means of the catch d.

The resistance to the raising of the sash will` depend upon thetightness with which E is held between D and B when at its lowestposition, and may be increased or diminished, as desired, by setting theframe C nearer to or farther from the casing B; but it is evident thatby making the ledge c inclined downward, or by so shaping D that itshall have `an incline in the other direction below the roller E, thesame mechanism maybe made to hold the sash down as well as up withconsiderable force. The roller E, being coated upon the casing, and theaction of the stopis always to take up any play there may be in theparts, and thus prevent rattling-a function of considerable importance,especially in Vrailroad-cars, and which by proper management it may bemade to perform efficiently while the sash is entirely down,as well aswhen in any desired stage of elevation.

Among the advantages due to my invention are, great simplicity andlittle liability to get out of order, there being nosprings or othereasily-deranged parts employed, and the stop may be rendered entirelyinoperative at will,

or the window may be not only supported but l eure by Letters Patent,is-

l. The combination and arrangement of the movable inclined piece D andthe stop d, or its equivalent, with the elastic roller E, substantiallyas and for the purpose herein described.

2. In combination therewith, the e1nployment of teeth or of equivalentroughened surface on the face of D, for the purpose herein set forth.

In testimony whereof I have hereunto set'my name in presence of twosubscribing witnesses.

l JOHN SLINGERL AND. Witnesses:

THoMAs D. STETsoN, G. H. BABCooK.

